﻿using System.Web.Security;
using System.Collections.Generic;
using System.Configuration.Provider;
using System.Collections.Specialized;
using System;
using System.Data;
using System.Data.Odbc;
using System.Configuration;
using System.Diagnostics;
using System.Web;
using System.Globalization;
using System.Security.Cryptography;
using System.Text;
using System.Web.Configuration;
using System.Linq;
using Microsoft.SharePoint;

namespace ContosoProviders
{

    public sealed class BaseMember : MembershipProvider
    {
        private LDAPMember _fbaLDAPProvider = null;
        private LDAPMember FBALDAPProvider
        {
            get
            {
                if (_fbaLDAPProvider == null)
                    _fbaLDAPProvider = new LDAPMember();
                return _fbaLDAPProvider;
            }
        }
        private Members _fbaSQLProvider = null;
        private Members FBASQLProvider
        {
            get
            {
                if (_fbaSQLProvider == null)
                    _fbaSQLProvider = new Members();
                return _fbaSQLProvider;
            }
        }
        #region Override methods

        public override MembershipUserCollection FindUsersByEmail(string emailToMatch, int pageIndex, int pageSize, out int totalRecords)
        {

            if (FBASQLProvider.FindUsersByEmail(emailToMatch,pageIndex,pageSize,out totalRecords).Count> 0)
                return FBASQLProvider.FindUsersByEmail(emailToMatch, pageIndex, pageSize,out totalRecords);
            else
                return FBALDAPProvider.FindUsersByEmail(emailToMatch, pageIndex, pageSize, out totalRecords);
            
        }

        public override MembershipUserCollection FindUsersByName(string usernameToMatch, int pageIndex, int pageSize, out int totalRecords)
        {
            if (FBASQLProvider.FindUsersByName(usernameToMatch, pageIndex, pageSize, out totalRecords).Count > 0)
                return FBASQLProvider.FindUsersByName(usernameToMatch, pageIndex, pageSize, out totalRecords);
            else
                return FBALDAPProvider.FindUsersByName(usernameToMatch, pageIndex, pageSize, out totalRecords);
        }

        public override MembershipUserCollection GetAllUsers(int pageIndex, int pageSize, out int totalRecords)
        {
            if (FBASQLProvider.GetAllUsers(pageIndex, pageSize, out totalRecords).Count > 0)
                return FBASQLProvider.GetAllUsers(pageIndex, pageSize, out totalRecords);
            else
                return FBALDAPProvider.GetAllUsers(pageIndex, pageSize, out totalRecords);
        }

        public override MembershipUser GetUser(string username, bool userIsOnline)
        {
            if (FBASQLProvider.GetUser(username, userIsOnline) != null)
                return FBASQLProvider.GetUser(username, userIsOnline);
            else
                return FBALDAPProvider.GetUser(username, userIsOnline);
        }

        public override MembershipUser GetUser(object providerUserKey, bool userIsOnline)
        {
            if (FBASQLProvider.GetUser(providerUserKey, userIsOnline) != null)
                return FBASQLProvider.GetUser(providerUserKey, userIsOnline);
            else
                return FBALDAPProvider.GetUser(providerUserKey, userIsOnline);
        }

        

        public override bool ValidateUser(string username, string password)
        {
            bool isAuth = false;

            SPSecurity.RunWithElevatedPrivileges(delegate()
            {
                
                if (FBASQLProvider.ValidateUser(username, password))
                {isAuth = true;}
                 else if (FBALDAPProvider.ValidateUser(username, password))
                {
                     isAuth = true;}
                else
                { isAuth = false; }
            });

            return isAuth;
        }
        public override bool ChangePassword(string username, string oldPassword, string newPassword)
        {
            bool changed = false;
            try
            {
                if (ValidateUser(username, oldPassword))
                {
                    if (FBASQLProvider.GetUser(username, false) != null)
                    {
                        changed = FBASQLProvider.ChangePassword(username, oldPassword, newPassword);
                    }
                    else
                    {
                        changed = FBALDAPProvider.ChangePassword(username, oldPassword, newPassword);
                    }
                }
              
            }
            catch (Exception ex)
            {
                changed = false;
            }
            return changed;
        }


        #endregion

        #region Not override methods

        public override string ApplicationName
        {
            get
            {
                throw new NotImplementedException();
            }
            set
            {
                throw new NotImplementedException();
            }
        }
        public override string GetUserNameByEmail(string email)
        {
            throw new NotImplementedException();
        }
        
        public override bool ChangePasswordQuestionAndAnswer(string username, string password, string newPasswordQuestion, string newPasswordAnswer)
        {
            throw new NotImplementedException();
        }

        public override MembershipUser CreateUser(string username, string password, string email, string passwordQuestion, string passwordAnswer, bool isApproved, object providerUserKey, out MembershipCreateStatus status)
        {
            throw new NotImplementedException();
        }

        public override bool DeleteUser(string username, bool deleteAllRelatedData)
        {
            throw new NotImplementedException();
        }

        public override bool EnablePasswordReset
        {
            get { throw new NotImplementedException(); }
        }

        public override bool EnablePasswordRetrieval
        {
            get { throw new NotImplementedException(); }
        }

        public override int GetNumberOfUsersOnline()
        {
            throw new NotImplementedException();
        }

        public override string GetPassword(string username, string answer)
        {
            throw new NotImplementedException();
        }

        public override int MaxInvalidPasswordAttempts
        {
            get { throw new NotImplementedException(); }
        }

        public override int MinRequiredNonAlphanumericCharacters
        {
            get { throw new NotImplementedException(); }
        }

        public override int MinRequiredPasswordLength
        {
            get { throw new NotImplementedException(); }
        }

        public override int PasswordAttemptWindow
        {
            get { throw new NotImplementedException(); }
        }

        public override MembershipPasswordFormat PasswordFormat
        {
            get { throw new NotImplementedException(); }
        }

        public override string PasswordStrengthRegularExpression
        {
            get { throw new NotImplementedException(); }
        }

        public override bool RequiresQuestionAndAnswer
        {
            get { throw new NotImplementedException(); }
        }

        public override bool RequiresUniqueEmail
        {
            get { throw new NotImplementedException(); }
        }

        public override string ResetPassword(string username, string answer)
        {
            throw new NotImplementedException();
        }

        public override bool UnlockUser(string userName)
        {
            throw new NotImplementedException();
        }

        public override void UpdateUser(MembershipUser user)
        {
            throw new NotImplementedException();
        }
        #endregion
    }
}

